The water polo events at the 1991 World Aquatics Championships were held from 3 to 13 January 1991, in Perth, Western Australia.[1]
Medal summary
Medal table
| Rank | Nation | Gold | Silver | Bronze | Total |
|---|---|---|---|---|---|
| 1 |  Netherlands (NED) | 1 | 0 | 0 | 1 |
 Yugoslavia (YUG) | 1 | 0 | 0 | 1 | |
| 3 |  Canada (CAN) | 0 | 1 | 0 | 1 |
 Spain (ESP) | 0 | 1 | 0 | 1 | |
| 5 |  Hungary (HUN) | 0 | 0 | 1 | 1 |
 United States (USA) | 0 | 0 | 1 | 1 | |
| Totals (6 entries) | 2 | 2 | 2 | 6 | |
